Superheater attachment for furnaces



Aug. 21, 1923.

G. F. $EITZ SUPERHEATER ATTACHMENT FOR FURNACES Filed Nqv. 21 1921 2 Sheets-Sheet 1 SJ vwentoz @ewye 27 1.5 6% ZZ Amg zl, 1923. fiflfi i fi fi G. F. $ETZ SUPERHEATER ATTACHMENT FOR FURNACES Filed Nov. 21, 1921 2 Sheets-Sheet 2 Patented fitting. 211, 1923.

t t i hi iii G EORGE F. SEIT Z, OF PHILADELPHIA, PENNSYLVANIA.

SUPERHEATER ATTACHMENT FOR FUBNACE$ Application filed November 21, 1921. Serial No. 516,826.

To all whom it may concern:

Be it known that LjGnonon F. Snrrz, a citizen of the United States, residing at Philadelphia in the county of Philadelphia and State ofPennsylvania, have invented new and useful Improvements in- Super heater Attachments for Furnaces, Of'WlllCll' the following is a specification.

This invention "relates to stoves and furnaces, and has for its object the. provision of'a device adapted to be located within the fire boxand partly embedded within the coals'therein, the device being for the pur poseof promotingcombustion of the gases rising from the coal whereby to utilize every bit of combustiblefrnatter and produce a much hotter firethan is ordinarily obtained. An important object isthe provision of an attachment of this character which includes means for forming superheated steam,

mixing it with air and then blowing the mixture into the bed of coals, the mixture combining Wltlitllfi gases arls ng from the a highly combustible gaseous mixture which will burn violently and produce a very hot sheet of flame.

. Another object is the provision'of a device of this-character which comprises means for forming superheated steamand blowing it forcibly through the bed of coals, the steam being used either alone or in conjunction with air.

An additional object is the provision of a device of this character which will be com} paratively simple and inexpensive in manufacture and installation highly eilicient in use, durable in service," positive in action,

and a general improvement in the art.

With the above and other objects and ad vantages in view, the'invention consists in thedetails of construction to be hereinafter more fully-described and claimed and illustrated in the accompanying drawings in which Figure l is a view of a portion of a furnace, parts being broken away to show my device imposition.

Figure 2 is adetail sectional view through a portion of the furnace showing my superheater mounted therein. 1

I Figure Siis a longitudinal section taken through the humidifier. 1 I 1Fig'ure 4 is a detail end elevation thereof Figure 5 is a longitudinal section through the superheater.

Figure 6 is a section taken at right angles to Figure 5.

Referring more particularly to the drawings, the letter A designates a portion of afurnace and B designates the tire box thereof. In carrying out my invention 1 provide a super-heater 10 which is located within the fire box and which is partially embedded within. the mass of coals within the furnace or, stove. Leading from the upper portion of this superheater is a pipe 1T which extends through one side "of the furnace and which may be suitably secured thereto by any desired means. This pipe leads to a humidifier or water admixing device in dicated broadly by the numeral 12. The superheater might be secured in position in any one of various ways, though I have shown it as provided with lugs 13 which engage against the top of the fire box lining. I also provide other lugs l-i which extend from the rear side of the superheater near the lower portion-thereof and which engage against the lining for holding the super heater proper in spaced relation to the linmg.

The superheater is here illustrated as being of rectangular formation, though it is conceivable that some other shape might be used and it is to be understood that it may be constructed of any suitable or preferred materialcapable of withstanding the heat generated within a furnace.- This super heater casing is formed internally with a plurality of channels 15 arranged as clearly disclosed in Figure 5. one channel having the pipe .11 leading thereinto. The outermost channels are enlarged to define expansionpoclrets 16 and the wall of the superheater farthest from the lining of the fire box is provided with a series of countersunk holes or perforations 17 of suitable diameter, whichcommunicate with one endmost channel 15 and the pocket therein.

The humidifier portion of the device; indicated broadly by the numeral 12, comprises an elongated casing l8-which is lined throughout the major portion of its length with absorbent material 19. The pipe 11 leads from one end'of this casing 18 and the other end is formed with an air vent and overflow hole 20 which is capable of being covered or uncovered to a variable e2;- tent by means of a pivoted cover 21. This 7 second mentioned end of the casing is formed with an upward extensionfi? which is of sufficient size to admit and hold the neck of a bottle 23. Held within the neck of the bottle is a suitable stopper 24: through whichextends a wick25 which serves to 'permit water within the bottle to drip into 10 the casing 18 so that the latter will always be supplied with moisture as long as there is any waterinthe bottle.

The operation of the device is as follows When there is a fire in the l'urnaceand it.

is desired to put my device intooperatiomit 1s, necessary to pour water into the 'casmglS until itoverflows through the vent hole 20; The bottle equipped with the stopper and wick is then inverted and engaged within the'upward extens1on22 so: as to allow water to drip continually "into the casing 18 for will pass through the pipe :11 into the super maintaining the water therein :atLa constant level. yA'ir will be drawn into the casing 18 through thezhole 20vand in passing over the water will'produce a'fmoistmixture which heater. The bore of this pipe should be sufliciently large to counterbalance the pressure which existsiin the superheater. As

\ the superheater is partially embedded with- '-in the burning coals, it will beapparcnt that the moisture in the air passing thereinto, will be converted 1nto steam whlch will moreover become superheated during its passage through the serpentine channels 15.

" The'steam and air are of course greatly expanded under the influence of the heatzand the mixture will be forcibly ejected through the perforations 17, the superheated steam and air thus being forced through the burning coals and supplyingthereto the requisite oxygen to insure perfect combustion so that the coal or other fuel will be entirely consumed with the production of an almost negligible quantity of ash. This mixture commg in contact and intimately commingling with the gases generated within 17 the other elements which go to make up smoke, .are all consumed and converted into useful energy.

If a stronger fire is desired, the stopper in'theneck of the bottleis loosened .to per- 1 unit the water to drip :more freely into the casing 18, and the air vent 20 is closed by swinging the cover 21 over 1t. This will of course resultin the formation of a larger quantity ofsuperheated steam whichlwill cause a much stronger flow into and among i the coals, this superheated steam generating more gas and causing a greaterforhotter fire. V

. If a slow burningfire is desired, a com paratively small quantity-of water should be ,poured into the'casing :18 and the bottle be removed entirely so that more air in proportion to-the superheated steam'will pass into the fire. 7

It will be observed that Ihave shown and described the bottle having the stopper and wickas a water supply means, but-it should be distinctly understood that any other means might be employed for causing water to drip into the humidifiercasinggabsolutely no limitation being desired"inzthisi respectr This particular arrangement is,fhowever, convenient and 1nexpens1ve':and -Wlll :oper ate efliciently. 1 a

While I have shown" and described the i preferredembodiment of :my invention, Fit'is 7 of course to be understood that I reserve the right to make such changes in the form,

construction and arrangementzof parts :as

will not depart from the spirit of' the inv vention or the scope of thesubjoined vclaims.

hat isclanned 1s l V :1. A furnace attachmentfcomprising a sage and a plurality of perforations communicating with-the passage, iapipe leading into said passage and leading through one side of the furnace, and me'ans fo-r supplying water and air alone or together throughsaid pipe into the superheaterf r 4 "2. A furnace attachment-comprising 'a superheater located within the fire boxfof a furnace, said superheater being formed with a serpentine passage expanded at intervals 1nto pockets, the wall of the superheater:

mostremote from the wall of the fire box being provided with aplurality ofperfora tions communicating with one endmost superheater located'withinthe fire box of a furnace and formed with a serpentine p'as-' branch f the passage, and a water and air inlet pipe leading from the outside of the furnace into the other endmost branch of,

the passage, r l

A furnace attachment pomprising a super-heater located within the firebox of a furnace'and :tormed at its upper end with lugs seating upon the top oi the fire box lining and formed upon its rear walln'ear its lower end with a' plurality of other engaging against the adjacent wall of the lining, sald 'superheater sbeing formed with passages and outlet perforations, and a-con ducting ipe-leadinginto:theisuperheater 4. A "furnace "attachment comprising a superheater located within the' fire box ofl a furnaceand having passages and outlet *per- 7 forations a conducting pipe lea'ding intothe passages and extendin "to the outside of the furnace, a casing connected with the outer end of said pipe and having a lining of absorbent material, said casing having one end formed with an upturned extension and a controllable airinlet opening, and

means for supplying Water into said casing and through said upturned end.

5. A furnace attachment comprising a superheater located Within the'fire box of a furnace and provided With perforations, a casing located exteriorly of the furnace and having one end carrying a pipe connected with and communicating with the superheater, the other end of said casing being upturned, means for supplying Water into said upturned end, said upturned end portion being formed with an opening, and a movably mounted shutter on said upturned end for partly or entirely closing said opening.

In testimony whereof I afiix my signature.

GEORGE F. SEITZ. 

